lfs/chapter05/diffutils-inst.xml

<sect2><title>&nbsp;</title><para>&nbsp;</para></sect2>

<sect2>
<title>Installation of Diffutils</title>

<para>Prepare Diffutils to be compiled:</para>

<para><screen><userinput>LDFLAGS="-static" CPPFLAGS=-Dre_max_failures=re_max_failures2 \
&nbsp;&nbsp;&nbsp;&nbsp;./configure --prefix=$LFS/static --disable-nls</userinput></screen></para>

<para>The meaning of the configure options are:</para>

<itemizedlist>
<listitem><para><userinput>LDFLAGS="-static":</userinput> This is the most
common way to tell a package that all programs should be statically linked.
This way the <emphasis>LDFLAGS</emphasis> environment variable is set but
only in the subshell that the <filename>configure</filename> script runs
in. When <userinput>configure</userinput> is done its job, the
<emphasis>LDFLAGS</emphasis> variable won't exist
anymore.</para></listitem>

<listitem><para><userinput>CPPFLAGS=-Dre_max_failures=re_max_failures2:</userinput>
The <emphasis>CPPFLAGS</emphasis> variable is a variable that's read by the
cpp program (C PreProcessor). The value of this variable tells the
preprocessor to replace every instance of <emphasis>re_max_failures</emphasis>
it finds with <emphasis>re_max_failures2</emphasis> before handing the source
file to the compiler itself for compilation. This package has problems
linking statically on systems that run an older Glibc version and this
construction fixes that problem.</para></listitem>
</itemizedlist>

<para>Finish off by compiling and installing the package:</para>

<para><screen><userinput>make
make install</userinput></screen></para>

</sect2>